Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Patent
1993-01-26
1994-12-20
Melius, Terry Lee
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
175428, 761082, E21B 1062
Patent
active
053739078
ABSTRACT:
Quality of a matrix body of a matrix body drill bit is tested by forming an extension of the matrix material near the nose of the matrix body drill bit. A notch is formed in a mold used to form the matrix body drill bit. The notch is filled with matrix powder during loading of the mold and subsequently infiltrated with binder alloy during infiltration of the matrix body. A matrix body extension is thus formed in the notch. The notch, and thus the matrix body extension, has a ratio of length versus diameter sufficiently high to allow the extension to be removed without permanently damaging the matrix body. The removed extension may then be subsequently tested.
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Security Strat-X Bits, Security Division, Dresser Industries, Inc. (Date Unknown).
Chapter 6, Manufacturing and Quality Control, Security Division, Dresser Industries, Inc. (Date Unknown).
Dresser Industries Inc.
Melius Terry Lee
Tucker L. Dan
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